3.10.5.1.2 PRR0 – Power Reduction
Register 0
This register allows a
fine-grained clock control. Clocks for various I/O modules can be turned off by setting
the corresponding flag to “high”. Therefore, the power consumption of these modules is
reduced when they are not needed. All modules except the SPI are disabled by default and
they must be enabled if required.| Name: | PRR0 |
| Offset: | 0x001 |
| Reset: | 0x00 |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| | | | PRCO | PRVM | PRCRC | PRTXDC | PRRXDC | PRSPI | |
| Access | R | R | R | R/W | R/W | R/W | R/W | R/W | |
| Reset | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | |
Bit 7 – Reserved
Bit
This bit is reserved and reads
as ‘0’.
Bit 6 – Reserved Bit
This bit is reserved and reads
as ‘0’.
Bit 5 – PRCO Power Reduction
Clock Output
Writing a logic
‘1’ to this bit stops the clock and shuts down the clock output
module. When waking up, the module must be reinitialized to ensure proper
operation.
Bit 4 – PRVM Power Reduction
Voltage Monitor
Writing a logic
‘1’ to this bit stops the clock to the stage and shuts down the
voltage monitor module. When waking up, the module must be reinitialized to ensure
proper operation.
Bit 3 – PRCRC Power Reduction
CRC
Writing a logic
‘1’ to this bit stops the clock to the stage and shuts down the
CRC module. When waking up, the module must be reinitialized to ensure proper
operation.
Bit 2 – PRTXDC Power Reduction
Transmit DSP Control
Writing a logic
‘1’ to this bit stops the clock and shuts down the transmit DSP
control module. When waking up, the module must be reinitialized to ensure proper
operation.
Bit 1 – PRRXDC Power Reduction
Receive DSP Control
Writing a logic
‘1’ to this bit stops the clock and shuts down the receive DSP
control module. When waking up, the module must be reinitialized to ensure proper
operation.
Bit 0 – PRSPI Power Reduction
Serial Peripheral Interface
Writing a logic
‘1’ to this bit stops the clock to the module and shuts down
the serial peripheral interface. When waking up, the module must be reinitialized to
ensure proper operation.
